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How High Should Kitchen Sink Drain Be from Floor? (Answered)

When we cook in the kitchen, we wash our hands and utensils in the sink. It is also known as the basin or water bowl.

It has a drain that flows the water from the sink to the destination. When you plan to set the kitchen sink drain, you need to maintain a minimum height.

This height depends on the sink structure and your comfort as well. Countertop, depth, and width of the sink will determine the perfect height. Let’s get through them and find out the measurement.

How high should the kitchen sink drain be from the floor?

The kitchen sink drain should be 24 inches high from the floor. The maximum high would be 28 inches when the sink is 8-inch depth. But an average kitchen sink can’t exceed 24″. If they are big and you use above the standard size kitchen sink, the drain size will be bigger.

Before setting up the kitchen set, you must take perfect measurements of all the related things, including tap, vanity, and sink.

It’s always better to double-check the size and then cut the accessories accordingly to fit the holes. If you make any mistake, it will ruin the entire structure.

You can’t even get the perfect height of the drain from the floor. First, you must ensure that the kitchen sink has the ideal drain. Please check before purchasing the sink and drain.

Sometimes, the drain won’t go the sink; therefore, many struggles begin there, and you can’t set up the drain at the perfect height. So, it’s always better to purchase the sink and drain from any renowned brand or review most customer reviews.

Although the bathroom faucet comes with the drain and sinks altogether, you won’t find them with the kitchen faucet.

You need to consider the kitchen faucet size, then go for the sink and drain. If you buy the small size drain and sink, it won’t fit into the faucet; as a result, you might face overflow water.

After considering all these factors and taking the perfect measurements, you are ready to buy the right sized kitchen sink, which comes with the perfect drain.

Then, set up the new kitchen sink drain and enjoy washing hands and utensils. But, the sink should be installed first.

After that, you can set up the drain from the sink or basin. It will make your task easier, and you won’t miss the perfect height of the sink drain. You can re-check the sink depth and size before setting up the drain.

What is the code for a kitchen sink drain?

In the USA, people hire plumbers hourly, which costs around $50-$200 based on the plumber’s skills and work type.

Do you know why they are expensive? Their skills and plumbing knowledge make them valuable, and they deserve the hiring price. What if you know the basic codes of plumbing?

If you know the kitchen and plumbing codes, you may be a DIY worker and set up the kitchen sink drain. It’s not rocket science to do it. A kitchen sink drain also has a code. The code is all about pipe sloping.

According to the code, “The drain pipe slope should be ¼” per foot, and the vent pipe slope is ⅛” on every foot. This code will help you set up the entire piping and kitchen sink drain without any issues”.

4 reasons why kitchen sink drain be at a certain height from floor

The kitchen sink drain must be at a certain height from the floor. We found four reasons behind it. They are:

Counter Height:

Kitchen counter height plays a vital role in setting up the sink drain. Since we cook and do other kitchen jobs by standing, the counter height must be at least 36″. It gives us better comfort while washing or cooking.

Therefore, the first reason is the counter height. If you don’t set the kitchen drain at a certain height, you won’t be able to work on the basin or from the counter height. Typically, the sink drain height is ⅔ times the counter height.


You must have the P-trap in your kitchen sink system. It’s a crucial part of the drainage system that holds most debris and ensures the water flows.

However, it might clog if you can’t give it enough space to pass the water and keep the debris.

So, the P-trap is also a significant concern while you set up the sink drain. You should maintain the minimum height and set the P-trap to help it keep the debris.

Necessary Connections:

You cannot simply put the drain under the kitchen sink or basin.

You need to set up other accessories underneath. In that case, you need to have space to set up other connections and let the water flow through them.

If you don’t take the height or space, you will fail to set up the connections. So, it’s better to have enough space than to set up the sink drain.

Sink Depth:

The basin or sink also has a depth that takes big space from the height of the drain. The standard depth of the sink is about 8 inches. That means, whatever you do, you must have 8 inches from the floor to set up the sink.

And, you can’t just leave 8 inches; you have to set up other accessories and maintain the counter height as well. The kitchen sink drain needs to be at a certain height for all these reasons.

Where should the drain be in the kitchen sink?

Middle-center is the perfect place to place the drain in the kitchen sink. It will flow the water from every corner and allow you to work smoothly without facing water overflow.

If you set the drain at the corner, getting the water and releasing it from the sink will take time. Although it’s okay to put the drain at the corner of the kitchen sink, it wi be better to set it up at the center.

How to connect kitchen sink to floor drain?

You can follow our steps to connect the kitchen sink to the floor drain.


You need to have some tools like wrenches, p-trap, plastic tape, and of course the kitchen drain.

These are the primary instruments that you need to connect the kitchen sink to a floor drain. Don’t forget to have the length of the pipe to pass the water from that height.

Set Sink:

You’re ready to set up the kitchen sink first after having all the tools. You already have the decided place to set the sink.

You have just to put the sink in the right position. Since the basin or the sink is weighty, you should help the family member set up the sink.

Connect the Drain:

Now, it’s time to connect the drainpipe with the kitchen sink and the floor holes. You have two holes to do that. One is attached to the kitchen sink; another is on the floor. First, connect the kitchen sink and the pipe.

After that, you need to connect the P-trap before connecting it to the end. This is crucial; never forget to set up the P-trap before connecting to the floor.

Complete the Setup:

You can now connect it to the floor and tighten the pipe through inserting. You have a space or oath to insert the line on the floor. You need to attach the pipe firmly. Then, you’re done.

How far below the sink should the trap be? What height should the kitchen sink waste pipe be?

The trap should be halfway below the sink. You can also place it as close as possible. It has some benefits as well.

If you place the p-trap near the bottom, it will be difficult to clean it and remove the debris. If you place it near the sink, you can easily clean it with some tools.

Although the kitchen plumbing code refers to placing the P-trap 24″ inches below the kitchen sink, it’s better to put it half the way down. It can pass the water smoothly and keep the debris that you can clean up after a week.

The kitchen sink waste pipe should be 18 to 20 inches in height. It will be better not to enlarge the height or reduce the height. You must follow this standard to set up the kitchen sink.

Final Thoughts

Twenty-four inches are the best height for the kitchen sink from the floor. It might vary due to sinking depth and sizes. If you have to buy the 8- or 10-inches depth sink, it would be better to have the 28 or 30 inches from the floor. It will flow the water without hampering or clogging the p-trap.